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The Schlage ND40S-ATH cylindrical privacy lockset is a heavy-duty Grade 1 solution designed for commercial interior openings that require privacy without key control. Built on the trusted ND Series platform, this lockset combines durable cylindrical construction with the clean look of the Athens lever for dependable day-to-day performance in demanding facilities. The ND40S privacy function is well suited for applications such as restrooms, patient areas, and other spaces where temporary privacy is needed. With UL listed options, broad door compatibility, and robust cycle testing, it is a reliable choice for long-term commercial use.
Features
Functional Details
The ND40S privacy function allows the inside lever to be locked by pushing and turning the inside button. The outside lever is unlocked by an emergency release from the outside, while rotating the inside lever releases the button and retracts the latch for safe egress.
| Manufacturer | Schlage |
| SKU | ND-40S-ATH |
| Grade | ANSI/BHMA A156.2, Series 4000, Grade 1 |
| Origin | Made in the USA of domestic and imported materials |
| Unit of Measure | Each |
| UL Listing Type | UL listed for 3-hour fire door |
| ANSI Number | F76 |
| BAA Qualified | Yes |
| Limited Warranty | 10-year limited mechanical warranty and 3-year limited electro-mechanical warranty |
| Door Thickness | 1-3/8 inch to 2-1/8 inch |
| Backset | 2-3/4 inch standard, 2-3/8 inch optional |
| Crossbore | 2-1/8 inch |
| Edge Bore | 1 inch |
| Latch Front | 1-1/8 inch x 2-1/4 inch |
| Door Thickness Range | 1-3/8 inch to 2-1/8 inch |
| Strike | 1-1/4 inch x 4-7/8 inch curved lip standard |
| Latch Throw | 1/2 inch |
| Cycle Testing | 3,100,000 cycles |
| Fire Rating | 3 hours |
| Projection | 3-1/2 inch maximum |
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